APA (7th ed.) Zitazioa
ebrary, Inc, Whitley, B. L., & Thornton, S. H. (2012). Tryptophan: Dietary sources, functions and health benefits. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Blake L. Whitley, eta Sarah H. Thornton. Tryptophan: Dietary Sources, Functions and Health Benefits. Hauppauge, N.Y.: Nova Science Publishers, 2012.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Tryptophan: Dietary Sources, Functions and Health Benefits. Nova Science Publishers, 2012.
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